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Post your Java projects on Upwork and hire expert software engineers and senior Java developers. They can create mobile applications for Android and iOS, redevelop Android widgets, modify and add new Java scripts to your custom Java software, or develop GUI applications with the Swing GUI widget toolkit. The java developers on Upwork are experienced in Java persistence frameworks (like Hibernate), web development, security or database frameworks and Java project lifecycle management tools (like Maven). They can also check, fix or add new Java classes into your Java code, or manage your software debugging, quality control software development or testing tool programming.

Java is a class-based, object-oriented computer programming language that is ideal for cross-platform application development. It comes with a library of commonly used classes and utility functions, called the Java API. On Upwork, the world’s largest online workplace, companies hire experienced Java architects and software engineers to develop all kinds of cross-platform applications, from torrent clients and media players, to helpdesk tools and mobile apps.

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Last updated: October 1, 2015
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Fyodor K.

Fyodor K. Agency Contractor

Senior JAVA Developer


My name is Fyodor. I work as Senior Java Developer and a Team Lead. Familiar with Java, JavaEE, JavaSE, Scala, Spring Framework: IoC, Integration, ORM, MVC, AngularJS, Knockout, Apache Maven, Apache Tomcat, Apache Tiles, CSS, Git, HTML, HTTP, Hibernate ORM, JDBC, JQuery, JSP, Servlets, Java 8, JavaScript, Oracle DB, Oracle Pl/SQL, REST, SOA, SOAP, SVN, WebLogic. Effective and accountable in high profile roles. Overcome complex business challenges and make decisions using experience. Backed judgment, strong work ethic and irreproachable integrity. Respected as proponent of empowerment and accountable!

Associated with: Magora Systems

$35.00 /hr
315 hours

Jesu Rajaram Agency Contractor

Java / J2EE Web developer

India - Tests: 5

Java/J2EE Developer with more than 7+ years of IT experience. + Expertise in end to end implementation and delivery of challenging and innovative projects + Experience in building highly scalable/available systems + Expertise and experience in delivering with technologies like spring struts jquery ajax Rest web services ejb etc.. Looking forward to own and execute innovative and challenging assignments

Associated with: 10DECODERS-SERVICES

$11.11 /hr
109 hours

Ledisi N.

Ledisi N.

Java Developer

Nigeria - Tests: 2 - Portfolio: 1

I am an experienced Java developer. I look at problems and find best possible solutions to those problems. i love challenging projects and never give up on providing the best. I have the following skills sets: java, j2ee, springframework, Hibernate, maven, jenkins, playframework, grails e.t.c I have worked on several projects ranging from desktop to web, and mobile, webscrapers, file parsers e.t.c, here are a few of them: 1)PlanSimulator : A simulator that displays movement of people within a shopping mall. The essence of this application is to help provide insights on user behaviours withing a shopping mall, as well as help to 2)PaymentBot : This is a bot that was developed to automate the process of adding items to cart and making payments on the Ministry of corporate affairs site in india( The site made use of captcha for login. I was able to overcome this by using the deathbycaptcha service.

$25.00 /hr
3 hours

Anvar Kiekbaev

Anvar Kiekbaev

Java Developer

Russia - Tests: 3

Java developer with 3+ years experience. I have worked with Java SE 6/7/8 JDK and Java EE 6/7 stack. Frameworks and Technologies: Guice, Netty, Apache Thrift, Google Protobuf, Disruptor, Akka, Play 2; Spring 3/4 (DI, AOP, Security), Apache CXF, Apache ActiveMQ; backbone.js, jquery, bootstrap. I would really like to be a part of a complex high load project as a backend developer. I always willing to explore new areas of software development.

$20.00 /hr
58 hours

Amitkumar Patel

Amitkumar Patel

Java Developer

India - Tests: 6 - Portfolio: 3

We are a group of professional software developers. We specialize in making quality mobile apps and providing end to end mobile app solutions with strict quality control process for best user experience. we also offer mobile game development and app marketing. We have a strong team of web developers to develop custom softwares and deliver incredible web apps and websites for all platforms. We have great infrastructure and top quality engineers forming a dynamic workforce with great reliability. Our approach is to deliver exceptionally flexible solutions that gives maximum advantage at minimal cost to our customers. Join us to get benefit from our highly experienced and professional IT team with a range full of skills and deep industries expertise with latest technologies like iOS, Android, Blackberry, Java, PHP, Joomla, Magento, Wordpress etc.

$22.22 /hr
437 hours

Alexander Glebov

Alexander Glebov

Senior JAVA Developer, JAVA Architect, Project Manager

Russia - Tests: 1

My latest achievement is Full-stack rich web application development. I'm using AngularJS and Bootstrap for the front-end. RESTful back-end powered by Java and following frameworks: Jackson serializes JSON, Spring for controllers and services, Hibernate as data mapper. • Having overall 15 years of professional experience. 12 years of Java development experience, 3 years of experience in Project Management • Expertise in database driven J2EE Development. Distributed and Clustered Application. Client-Server TCP-IP socket Application. • Experience in Project Management • Experience in Oracle and MySQL Database Administration • I have the ability to define system architecture, ability to research and fix non-trivial bugs, ability to fine tune system performance (optimizing DB queries, minimizing distributed calls, tuning GC parameters etc.). Teamwork rate high.

100% Job Success
$55.56 /hr
1,768 hours

Juan David Gil Diaz

Juan David Gil Diaz

Not Another Java Programmer

Colombia - Tests: 6 - Portfolio: 1

During the last years, I have been working as an employee as well as an academical student/researcher with J2EE Web and J2SE stand-alone environments. During the last year I worked for PSL (, CMMI level 5 company qualified for their good practices and awarded with the Software Process Achievement Award by the IEEE and the SEI (Software Engineering Institute). In PSL I developed some modules for a large Web proyect called Impacta, sold to a important motorcycles assembler in Colombia. Impacta is a Web application module that communicates with the company's ERP through Web-services, it has a multi-layer arquitecture that supports a with a CRM like functionality. Impacta uses JSF(Java Server Faces) for its presentation-layer, along with Ajax, in its business-layer uses pure Java integrated with Spring and Web- Services(Xfire) and in its persistence-layer, a PSL's propietary persistence framework was used against an Oracle DB.

100% Job Success
$25.00 /hr
2,678 hours

Nikolay G.

Nikolay G.

Technical Lead (Java)

Russia - Tests: 8 - Portfolio: 2

I'm an experienced Java programmer with solid principles in programming, architecture and code quality. I have a wide experience in Java-related technologies, so I can provide you high-level end product. I love to learn new technologies, frameworks etc, so research projects will be also interested for me. NOTE: If you are looking for bad quality, cheap, fast written code - do not distirb me, please. I'm not interested in working in a team which don't follow clean code, DRY and SOLID principles.

75% Job Success
$30.00 /hr
1,037 hours